^ Alex, you're really worthfull to society in admireble proportions. You really care about the worth, strives for peace and knowledge and is willing to benifit in teaching in a 3rd world country to spread the knowledge.

Anyone that makes you feel dumb and worthless is probably gonna end up in an boring deskjob later, making money without any responsibility of worldproblems. You're one of the most caring and worldconcerned people I've met. If society could get a teaspoon of your concentrated caring and concern this place would already be so much better. Don't feel dumb or worthless!